536184 Clickable background ad

I am looking for a script/code to be able to make the background outside of the framework of a site click-able. When you click on the background, it would be like clicking on a regular link (_blank). The necessity for the background to be a css background is so if someone with a lower res monitor views the site, there would not be a horizontal scroll bar. Sample of what I want is found here: [login to view URL] I am just looking for that effect; simply, a clickable background on the sides of a webpage that does not affect the actual content of the site. If you can prove a working example of what I am looking for, please include it in your correspondence with your bid.